Özet:

Hybrid composites are the material group largely preferred for use in space, aerospace and ballistic applications, where superior mechanical properties and low density are required. Hybrid composites produced using high-strength Kevlar fiber and S-glass fiber materials and nano particle added matrix in this study. Nineteen combinations of hybrid composite materials were produced using three matrix materials—nano-calcite, nano-clay and carbon nano-tube which have high-energy absorption properties. To compare the ballistic test results of hybrid composites, 1 control sample were tested. Nano particles were added into the composites in the ratio of 0.5, 1 to 2 percent, corresponding to the ratios that achieved the most desirable mechanical properties in other literature. Deflections occurring at composites’ back surfaces were measured after tests and evaluation of whether there would be perforation was done. As a result of this study, was seen that ballistic strength positively affected with nano particle addition and different stacking sequences of composite layers. In hybrid composites produced by S-glass reinforcement, the weight decreased by 20% while the ballistic strength decreased significantly. It was found that calcites adding hybrid composite plates at the front sites and clay added plates at the back sites showed superior ballistic performance. It was observed that the ballistic strength of hybrid composites increased with increasing calcite ratio at the front sites.

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